Improvement in flue-cap fastenings



H. MCMILLEN & W. L. RYDMAN.

FLUE CAP FASTENING.

No.178.794. Patented June13,1876.

Fig. 1

WITNEESES |NVENTE|R (M I W Y ATTBRNEY5 NVPETERS. FNOTOLITHOGRAFMER. WASHINGTON, D, C.

UNITED STATES PATENT OEEIoE.

HENRY MOMILLEN AND -WIL LIAM RYDMAN, OF LIMA, OHIO.

IMPROVEMENT IN FLUE-CAP FASTENINGS.

Specification forming part of Letters Patent No. 178,794, dated June 13, 1876; application filed May 11, 1876.

To all whom it may concern:

Be it known that we, HENRY MCMILL-EN and WILLIAM L. RYDMAN, of Lima, in the county of Allen and State of Ohio, have invented 'a new and useful Improvement in Flue-Gaps; and we do hereby declare the following to be a full, clear,'a-nd exact description.

In the drawings accompanying and forming part of this specification, Figure 1 represents a perspective view of our invention. Fig. 2 represents a cross-section of the same.

The object of our invention is the construction of a cap whereby the escape of fire, smoke, or soot from the opening of the flue may be entirely prevented, and which, while resting securely in place, may be readily and quickly fitted into, or removed from, the flue-opening.

The cap is made of-plaster-of- 'iaris, and consists of a body, the end of which projects into the flue, and a flange, which sits closely against the exterior surface of the wall. The exterior surface of the cap may be plain or of any desired ornamental pattern. Its interior surface is provided with four (more or less) springs, made of wire, of brass or other suitable metal. Each spring is bent a'tvits middle, and the wire coiled on both sides of the bend, the latter resting against the inner sur- Tace of the fluethimble, while the ends of the wire are secured in a block of wood which is embedded in the body. of the cap, the plasterof-paris being cast around it.

In the accompanying drawing, A represents thebody of the cap, with its circumferential flange a formed to lie flat on the exterior surface of the wall around the flue opening. B-

B are the four springs, their ends secured in the blocks 0 O, which are embedded in the body of the cap. Each spring is bent at its middle b, which rests within against the surface of the flue-thimble D, and on each side of the loop thus formed the wire is rolled into a coil, b Ii. E is the handle of the cap, formed ofany suitable substance, and provided with a screw, 6, which passes through it centrally into a wooden block, E, which is embedded in the center of the body of the I HENRY MoMILhEN.

Witnesses:

THEo. D. Ross, UHAs. M. HUGHES.

W'ILLIAM L. RYDMAN. 

